EP 4222416 A1 20230809 - COMPOUND LIGHT-GUIDE OPTICAL ELEMENTS
Title (en)
COMPOUND LIGHT-GUIDE OPTICAL ELEMENTS
Title (de)
ZUSAMMENGESETZTE OPTISCHE LICHTLEITERELEMENTE
Title (fr)
ÉLÉMENTS OPTIQUES DE GUIDAGE DE LUMIÈRE COMPOSÉS
Publication
Application
Priority
- US 202063086136 P 20201001
- US 202063114110 P 20201116
- IL 2021051185 W 20211001
Abstract (en)
[origin: WO2022070197A1] An optical system (100) for directing an image towards a user for viewing includes a light-guide optical element (LOE) (10) having parallel major external surfaces (11a, lib) for supporting propagation of an image by internal reflection, a coupling-out arrangement for coupling out the image towards an eye of the user, and a coupling-in aperture. An image projector (114) includes an image generator (32) for generating an image, collimating optics (31) for collimating the image, and an image conjugate generator (20, 33, 34). The image projector is coupled to the coupling-in aperture so as to introduce both the collimated image and its conjugate image into the LOE prior to the images impinging on either of major external surfaces. The image conjugate generator may be a second image generator (33), or may employ one or more reflecting surface (22, 23, 24, 34) non-contiguous with the major external surfaces of the LOE.
IPC 8 full level
F21V 8/00 (2006.01); G02B 6/24 (2006.01); G02B 6/26 (2006.01); G02B 27/01 (2006.01); G02B 27/10 (2006.01); G02B 27/28 (2006.01)
CPC (source: EP IL KR US)
G02B 6/0013 (2013.01 - US); G02B 6/0033 (2013.01 - US); G02B 27/0172 (2013.01 - EP IL KR US); G02B 27/126 (2013.01 - EP IL KR); G02B 27/283 (2013.01 - EP IL KR US); G02B 2027/0178 (2013.01 - KR US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2022070197 A1 20220407; CN 116368413 A 20230630; EP 4222416 A1 20230809; EP 4222416 A4 20240327; IL 301401 A 20230501; JP 2023544093 A 20231020; KR 20230077721 A 20230601; TW 202221382 A 20220601; TW I839642 B 20240421; US 2023359034 A1 20231109
DOCDB simple family (application)
IL 2021051185 W 20211001; CN 202180067344 A 20211001; EP 21874741 A 20211001; IL 30140123 A 20230315; JP 2023516468 A 20211001; KR 20237007989 A 20211001; TW 110136763 A 20211001; US 202118026138 A 20211001